UPSTREAM BASELINE: nextcloud/spreed v22.0.12 (без изменений)

Источник: https://github.com/nextcloud/spreed/archive/refs/tags/v22.0.12.tar.gz
С этого коммита ветка официального Nextcloud Talk отрезана (решение владельца 2026-07-06).
Все дальнейшие изменения — только наши; версии релизов: 22.0.12-f7.N.

lib/Model/AttachmentMapper.php

@@ -0,0 +1,78 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Talk\Model;
+
+use OCP\AppFramework\Db\QBMapper;
+use OCP\AppFramework\Db\TTransactional;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IDBConnection;
+
+/**
+ * @method Attachment mapRowToEntity(array $row)
+ * @method Attachment findEntity(IQueryBuilder $query)
+ * @method list<Attachment> findEntities(IQueryBuilder $query)
+ * @template-extends QBMapper<Attachment>
+ */
+class AttachmentMapper extends QBMapper {
+	use TTransactional;
+
+	public function __construct(IDBConnection $db) {
+		parent::__construct($db, 'talk_attachments', Attachment::class);
+	}
+
+	public function createAttachmentFromRow(array $row): Attachment {
+		return $this->mapRowToEntity([
+			'id' => (int)$row['id'],
+			'room_id' => (int)$row['room_id'],
+			'message_id' => (int)$row['message_id'],
+			'message_time' => (int)$row['message_time'],
+			'object_type' => (string)$row['object_type'],
+			'actor_type' => (string)$row['actor_type'],
+			'actor_id' => (string)$row['actor_id'],
+		]);
+	}
+
+	/**
+	 * @return list<Attachment>
+	 * @throws \OCP\DB\Exception
+	 */
+	public function getAttachmentsByType(int $roomId, string $objectType, int $offset, int $limit): array {
+		$query = $this->db->getQueryBuilder();
+		$query->select('*')
+			->from($this->getTableName())
+			->where($query->expr()->eq('room_id', $query->createNamedParameter($roomId, IQueryBuilder::PARAM_INT)))
+			->andWhere($query->expr()->eq('object_type', $query->createNamedParameter($objectType)))
+			->setMaxResults($limit)
+			->orderBy('id', 'DESC');
+
+		if ($offset > 0) {
+			$query->andWhere($query->expr()->lt('message_id', $query->createNamedParameter($offset)));
+		}
+
+		return $this->findEntities($query);
+	}
+
+	public function deleteByMessageId(int $messageId): void {
+		$query = $this->db->getQueryBuilder();
+		$query->delete($this->getTableName())
+			->where($query->expr()->eq('message_id', $query->createNamedParameter($messageId, IQueryBuilder::PARAM_INT)));
+
+		$query->executeStatement();
+	}
+
+	public function deleteByRoomId(int $roomId): void {
+		$query = $this->db->getQueryBuilder();
+		$query->delete($this->getTableName())
+			->where($query->expr()->eq('room_id', $query->createNamedParameter($roomId, IQueryBuilder::PARAM_INT)));
+
+		$this->atomic(static function () use ($query): void {
+			$query->executeStatement();
+		}, $this->db);
+	}
+}